Ce

Cerium

Qaybta 58 · 140.12 u

Lanthanide f-block Waqtiga 6 Cidhiidhi at RT Wikipedia →

Cerium waa qaybta dhulka ugu badan ee ugu badan, oo loo isticmaalo isbeddelayaal catalytic iyo dhalada.

Eeg astaamaha

Atomic mass140.12 u
Cidhiidhi6.77 g/cm³
Natiijooyinka1068.0 K
Natiijooyinka3716.0 K
MuuqaalkaMadow oo fidsan oo bir ah
Xaaladda heerkulka qolkaCidhiidhi

Eegista

Electronegativity1.12 (Pauling)
1st Ionization534.4 kJ/mol
Istaraatiijiyad55.0 kJ/mol
Nidaamka+3, +4

_Cusub:

Nidaamka[Xe] 4f1 5d1 6s2
Awooda181.0 pm
Xaraf204.0 pm
Van der Waals235.0 pm

Dib u eegista

La OgaadayJons Jacob Berzelius, Wilhelm Hisinger
Sannadka la helay1803
_MeelStockholm, Sweden
Magacaabistastar name

_Warbixinta Cerium

Cerium waa bir bir ah oo bir ah oo leh bir ah oo leh bir ah oo leh naxaas ah. Waxay u beddeli kartaa +3 iyo +4 xaaladaha oxidation. Cerium oxide waa kaaliyeyaasha muhiimka ah.

Barnaamijyada

Qaab-dhisayaasha catalytic, dhalada dhalaalaya, foornada is-daahirinta, foornada iftiinka, iyo dhalada UV-soo-saarka.

Xaqiiqo xiiso leh

In kasta oo loo yaqaan 'dhulka qadiimiga ah,' cerium waa ka badan oo badan oo ka mid ah dhul dhulka ka badan naxaas, qalin, ama tin.

Isotoobyo

Tirada Tirada Half-Life Xasiloon
136 0.00185% - Haa
138 0.00251% - Haa
140 0.8845% - Haa
142 0.11114% - Haa

Nidaamka

[Xe] 4f1 5d1 6s2

La barbardhigo

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